dmcallis
65a0592776
Source code drop for the Actionscript virtual machine in the Adobe Flash Player for December 2013
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 2 -*- */
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/* vi: set ts=2 sw=2 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "hm-main.h"
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#ifdef VMCFG_HALFMOON
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namespace halfmoon {
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BailoutData::BailoutData(Allocator& alloc, MethodInfo* method,
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int scope_base, int stack_base)
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: alloc_(alloc)
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, method_info_(method)
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, state_map_(alloc)
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, scope_base_(scope_base)
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, stack_base_(stack_base)
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{
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MethodSignaturep method_signature = method->getMethodSignature();
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frame_size_ = method_signature->frame_size();
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init();
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}
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BailoutData::~BailoutData() {
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}
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void BailoutData::setNativeType(int local_index, SlotStorageType sst_type) {
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current_state_->local_types[local_index] = sst_type;
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}
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void BailoutData::do_safepoint(int abc_pc, int abc_scope_ptr,
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int abc_stack_ptr) {
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current_state_->scope_ptr = abc_scope_ptr;
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current_state_->stack_ptr = abc_stack_ptr;
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state_map_.put(abc_pc, current_state_);
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SafepointData* new_state = new (alloc_) SafepointData;
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new_state->local_types = new (alloc_) SlotStorageType[frame_size_];
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new_state->scope_ptr = abc_scope_ptr;
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new_state->stack_ptr = abc_stack_ptr;
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SlotStorageType* local_types = new_state->local_types;
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for (int i = 0; i < frame_size_; i++) {
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local_types[i] = current_state_->local_types[i];
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}
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current_state_ = new_state;
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}
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int BailoutData::getStackPointer(int abc_pc) {
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SafepointData* state = getSafepointData(abc_pc);
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return state->stack_ptr;
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}
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int BailoutData::getScopeStack(int abc_pc) {
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SafepointData* state = getSafepointData(abc_pc);
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return state->scope_ptr;
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}
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SafepointData* BailoutData::getSafepointData(int abc_pc) {
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assert (state_map_.containsKey(abc_pc));
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return state_map_.get(abc_pc);
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}
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void BailoutData::init() {
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current_state_ = new (alloc_) SafepointData;
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current_state_->local_types = new (alloc_) SlotStorageType[frame_size_];
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current_state_->stack_ptr = stack_base_;
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current_state_->scope_ptr = scope_base_;
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}
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void BailoutData::clean() {
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state_map_.clear();
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}
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} // end namespace
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#endif // VMCFG_HALFMOON
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